[dragonfly.git] / usr.bin / window / error.c

/*	@(#)error.c	8.1 (Berkeley) 6/6/93	*/
/*	$NetBSD: error.c,v 1.6 2003/08/07 11:17:25 agc Exp $	*/

/*
 * Copyright (c) 1983, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Edward Wang at The University of California, Berkeley.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include "defs.h"
#include "context.h"
#include "char.h"

#define ERRLINES 10			/* number of lines for errwin */

void
error(const char *fmt, ...)
{
	va_list ap;

	va_start(ap, fmt);
	verror(fmt, ap);
	va_end(ap);
}

void
verror(const char *fmt, va_list ap)
{
	struct context *x;
	struct ww *w;

	for (x = &cx; x != 0 && x->x_type != X_FILE; x = x->x_link)
		;
	if (x == 0) {
		if (terse)
			wwbell();
		else {
			wwvprintf(cmdwin, fmt, ap);
			wwputs("  ", cmdwin);
		}
		return;
	}
	if (x->x_noerr)
		return;
	if ((w = x->x_errwin) == 0) {
		char buf[512];

		(void) snprintf(buf, sizeof(buf), "Errors from %s",
		    x->x_filename);
		if ((w = x->x_errwin = openiwin(ERRLINES, buf)) == 0) {
			wwputs("Can't open error window.  ", cmdwin);
			x->x_noerr = 1;
			return;
		}
	}
	if (more(w, 0) == 2) {
		x->x_noerr = 1;
		return;
	}
	wwprintf(w, "line %d: ", x->x_lineno);
	wwvprintf(w, fmt, ap);
	wwputc('\n', w);
}

void
err_end(void)
{
	if (cx.x_type == X_FILE && cx.x_errwin != 0) {
		if (!cx.x_noerr)
			waitnl(cx.x_errwin);
		closeiwin(cx.x_errwin);
		cx.x_errwin = 0;
	}
}
Commit	Line	Data
2c872e05	1	/* @(#)error.c 8.1 (Berkeley) 6/6/93 */
abecab39 SW	2	/* $NetBSD: error.c,v 1.6 2003/08/07 11:17:25 agc Exp $ */
abecab39 SW	3
984263bc MD	4	/*
	5	* Copyright (c) 1983, 1993
	6	* The Regents of the University of California. All rights reserved.
	7	*
	8	* This code is derived from software contributed to Berkeley by
	9	* Edward Wang at The University of California, Berkeley.
	10	*
	11	* Redistribution and use in source and binary forms, with or without
	12	* modification, are permitted provided that the following conditions
	13	* are met:
	14	* 1. Redistributions of source code must retain the above copyright
	15	* notice, this list of conditions and the following disclaimer.
	16	* 2. Redistributions in binary form must reproduce the above copyright
	17	* notice, this list of conditions and the following disclaimer in the
	18	* documentation and/or other materials provided with the distribution.
abecab39	19	* 3. Neither the name of the University nor the names of its contributors
984263bc MD	20	* may be used to endorse or promote products derived from this software
	21	* without specific prior written permission.
	22	*
	23	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	24	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	25	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	26	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	27	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	28	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	29	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	30	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	31	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	32	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	33	* SUCH DAMAGE.
	34	*/
	35
984263bc	36	#include "defs.h"
984263bc MD	37	#include "context.h"
	38	#include "char.h"
	39
	40	#define ERRLINES 10 /* number of lines for errwin */
	41
abecab39 SW	42	void
	43	error(const char *fmt, ...)
	44	{
	45	va_list ap;
	46
	47	va_start(ap, fmt);
	48	verror(fmt, ap);
	49	va_end(ap);
	50	}
	51
	52	void
	53	verror(const char *fmt, va_list ap)
984263bc	54	{
1e1668dd DR	55	struct context *x;
1e1668dd DR	56	struct ww *w;
984263bc MD	57
	58	for (x = &cx; x != 0 && x->x_type != X_FILE; x = x->x_link)
	59	;
	60	if (x == 0) {
	61	if (terse)
	62	wwbell();
	63	else {
abecab39	64	wwvprintf(cmdwin, fmt, ap);
984263bc MD	65	wwputs(" ", cmdwin);
	66	}
	67	return;
	68	}
	69	if (x->x_noerr)
	70	return;
	71	if ((w = x->x_errwin) == 0) {
	72	char buf[512];
	73
abecab39 SW	74	(void) snprintf(buf, sizeof(buf), "Errors from %s",
abecab39 SW	75	x->x_filename);
984263bc MD	76	if ((w = x->x_errwin = openiwin(ERRLINES, buf)) == 0) {
	77	wwputs("Can't open error window. ", cmdwin);
	78	x->x_noerr = 1;
	79	return;
	80	}
	81	}
	82	if (more(w, 0) == 2) {
	83	x->x_noerr = 1;
	84	return;
	85	}
	86	wwprintf(w, "line %d: ", x->x_lineno);
abecab39	87	wwvprintf(w, fmt, ap);
984263bc MD	88	wwputc('\n', w);
	89	}
	90
abecab39 SW	91	void
abecab39 SW	92	err_end(void)
984263bc MD	93	{
	94	if (cx.x_type == X_FILE && cx.x_errwin != 0) {
	95	if (!cx.x_noerr)
	96	waitnl(cx.x_errwin);
	97	closeiwin(cx.x_errwin);
	98	cx.x_errwin = 0;
	99	}
	100	}